Recomendação de calagem e adubação para o cupuaçueiro.

O prognóstico para uma adubação equilibrada depende tanto da quantificação da capacidade do solo em suprir os nutrientes necessários (interpretação da análise de solo) quanto da capacidade da árvore em utilizar os nutrientes disponíveis, torna-se imperativo o uso de sistemas de monitoramento do estado nutricional das árvores na recomendação de adubação. O Sistema Integrado de Diagnose e Recomendação pode ser utilizado para definir a demanda do nutriente pela árvore a partir de seu balanço nutricional, enquanto a interpretação da análise de solos fornece informações sobre sua disponibilidade. Nesse sentido, no período de 2009 a 2011, várias reuniões foram realizadas entre a Embrapa Acre e técnicos do Projeto Reflorestamento Econômico Consorciado Adensado (Reca) do distrito de Nova Califórnia, Município de Porto Velho, RO. O objetivo era discutir as práticas de manejo e formalizar um sistema de monitoramento nutricional e de recomendação de adubação para os pomares de cupuaçu.bitstream/item/93216/1/24768.pd

Nitric Oxide Resistance in Leishmania (Viannia) braziliensis Involves Regulation of Glucose Consumption, Glutathione Metabolism and Abundance of Pentose Phosphate Pathway Enzymes

In American Tegumentary Leishmaniasis production of cytokines, reactive oxygen species and nitric oxide (NO) by host macrophages normally lead to parasite death. However, some Leishmania braziliensis strains exhibit natural NO resistance. NO-resistant strains cause more lesions and are frequently more resistant to antimonial treatment than NO-susceptible ones, suggesting that NO-resistant parasites are endowed with specific mechanisms of survival and persistence. To tests this, we analyzed the effect of pro- and antioxidant molecules on the infectivity in vitro of L. braziliensis strains exhibiting polar phenotypes of resistance or susceptibility to NO. In addition, we conducted a comprehensive quantitative mass spectrometry-based proteomics analysis of those parasites. NO-resistant parasites were more infective to peritoneal macrophages, even in the presence of high levels of reactive species. Principal component analysis of protein concentration values clearly differentiated NO-resistant from NO-susceptible parasites, suggesting that there are natural intrinsic differences at molecular level among those strains. Upon NO exposure, NO-resistant parasites rapidly modulated their proteome, increasing their total protein content and glutathione (GSH) metabolism. Furthermore, NO-resistant parasites showed increased glucose analogue uptake, and increased abundance of phosphotransferase and G6PDH after nitrosative challenge, which can contribute to NADPH pool maintenance and fuel the reducing conditions for the recovery of GSH upon NO exposure. Thus, increased glucose consumption and GSH-mediated redox capability may explain the natural resistance of L. braziliensis against NO

Anxiety and depression symptoms after pulmonary rehabilitation in people with interstitial lung disease: responders and non-responders

Pulmonary rehabilitation (PR) is an effective intervention for people with interstitial lung disease (ILD), as it improvesexercise capacity, quality of life and dyspnoea. Less is, however, known about other important and frequentsymptoms, such as anxiety and depression. This study explored the response of anxiety and depression symptomsto PR in people with ILD. Participants undertook a 12-week community-based PR programme. Anxiety and depression symptoms wereevaluated before and after PR with the hospital anxiety and depression scale (HADS). The sample was stratified into2 groups according to the HADS score: ≥8 probable anxiety (PA) or depression (PD) and score <8 normal symptoms(NS). Responders were classified using the HADS minimal clinical important difference (≥1.5 points). 46 people with ILD (62±13 years; 63%♀; 75±20 FVC%; 56±18 DLCO%) participated. Number of responders inanxiety symptoms (73% PA; HADS-A pre: 12±3; mean change: 4±2; p<0.001 vs 25% NS; HADS-A pre: 6±2; meanchange: 2±0; p<0.001) was much higher than in depression symptoms (27% PD; HADS-D pre: 11±3; mean change:3±1; p=0.014 vs 13% NS; HADS-D pre: 5±2; mean change: 2±1; p=0.003). PR seems to improve anxiety symptoms, but it might not be as effective for depression symptoms in people with ILD.Future studies are needed to investigate the role of PR in the psychological health of people with ILD.publishe

Diversity, distribution and new records of freshwater and estuarine shrimp in the state of Amapá, eastern Brazilian Amazon region.

This study presents the freshwater and estuarine shrimp species that occur in the state of Amapá, in the eastern region of the Brazilian Amazon. The data were obtained through information contained in the Brazilian crustacean collections of the Institute of Scientific and Technological Research of the State of Amapá (IEPA) and the National Institute for Research in the Amazon (INPA) and the detailed examination of the listed specimens. All information contained in the log book and specimen labels were noted for the identification and mapping of occurrence areas in the region. A survey in the literature of the species previously recorded for Amapá was carried out. The diversity of freshwater and estuarine shrimp was composed of 21 species distributed in the following families: Alpheidae (Alpheus nuttingi), Euryrhynchidae (Euryrhynchus amazoniensis, Euryrhynchus burchelli, Euryrhynchus tomasi and Euryrhynchus wrzesniowskii), Lysmatidae (Exhippolysmata oplophoroides), Palaemonidae (Macrobrachium acanthurus, Macrobrachium amazonicum, Macrobrachium brasiliense, Macrobrachium carcinus, Macrobrachium jelskii, Macrobrachium inpa, Macrobrachium olfersii, Macrobrachium surinamicum, Nematopalemon schmitti, Palaemon carteri, Pseudopalaemon amazoniensis, Pseudopalaemon chryseus, Leander tenuicornis), Penaeidae (Xiphopenaeus kroyeri and Sergestidae) (Acetes marinus and Acetes paraguayensis). Alpheus nuttingi and L. tenuicornis were new records for the state of Amapá. This study contributes to the knowledge of the diversity and geographic distribution of decapod crustaceans in Amapá and highlights areas where there are gaps in collection, thus contributing to a better understanding of these invertebrates in the region

Mapeamento genético e piramidização de genes de resistência no desenvolvimento de multilinhas e cultivares compostas de arroz irrigado com resistência estável à brusone (Pyricularia grisea): relatório técnico.

A principal estratégia do projeto foi a piramidização indireta de diferentes alelos da família gênica Pi em linhagens elite de arroz, visando propiciar resistência estável à doença. A hipótese de trabalho é que a mistura de linhagens quase-isogênicas de arroz que possuem diferentes genes de resistência à brusone conferirá maior estabilidade de resistência no campo à população de isolados do patógeno.bitstream/CNPAF-2010/29874/1/doc-243.pd

Typifying beef cattle producers in Brazilian biomes.

According to the 2006 Agricultural Census, Brazilian cattle production encompasses over 170 million heads on approximately 150 million ha of grasslands (IBGE, 2015), placing the country as the second largest bovine herd worldwide. The objective of this study was to show the variability of beef cattle in the country, grouping producers into homogeneous groups according to their production characteristics. Knowing these groups and the differences among them is essential for research, development, technology transfer and appropriate public policies

Typifying beef cattle producers in Brazilian biomes.

The objective of this study was to show the variability of beef cattle in the country, grouping producers into homogeneous groups according to their production characteristics. Knowing these groups and the differences among them is essential for research, development, technology transfer and appropriate public policies.Coordenador: Roberto Giolo de Almeida. II SIGEE

Arquitetura e tolerância ao acamamento de linhagens elite de feijoeiro-comum carioca sob fixação biológica de nitrogênio.

O objetivo foi avaliar a influência da adubação nitrogenada e da inoculação com rizóbio na arquitetura e na tolerância ao acamamento de linhagens de feijoeiro-comum de grãos carioca